Even though Spears weighs more, Brockers has a bigger frame, and is more suited to possibly play the NT, but he can also play NT. Despite what the scouting reports say, Brockers doesn't provide much as a pass rusher, but excels in stuffing the run with his overwhelming power. He may be a bit more athletic and agile than Spears is. Anyone that gets him will be drafting off of potential instead of production. I'm not a big fan of his early in the 1st round for this reason. The only scenario where I'd want him is if we trade down somehow and acquire multiple late-first round or very early second round picks.
It is hard to fail, but it is worse never to have tried to succeed.